How does the death star "working" logo on the UNIXPC work?

[Steven L. Baur]

I am curious to know what system calls, etc.  are used to implement the
AT&T death star "working ..." logo that appears on the UNIXPC.
What program produces it, etc.
I have thought about it for some time but have not come up with a solution.

Thanks in advance.
--
steve	baur at venice.SEDD.TRW.COM
A computer which cannot run GNU emacs is not worth using.